To date, many foreign cars that drive our country's roads are equipped with automatic transmission. Such cars prefer the female car owners. Most men who are accustomed to the "mechanics" are strongly disliked automatic transmission. However, since the passion for foreign cars does not subscribe in Russia, but, on the contrary, it grows, it is necessary to get used to the "machine", since most of the cars exported to our country are equipped with automatic transmission. With proper care of the "automatic", it will last for many years. Owners of such cars always feel calm and confident when moving. They only sufficiently press brake and gas pedals, and the rest of the work will be executed by automatic transmission. This significantly increases the comfort of transport and gives the driver more time to keep track of the road, and not be distracted by gear shift. However, the automatic transmission also has its own minuses. About this further in the article.

Automatic transmission device how it works

In the work of the automatic transmission, such mechanisms are involved:

1. Planetary reductor.
   
2. Hydrotransformer.
   
3. Hydraulic control system.
   
4. Electronic control system.
   

The main task of the hydrotransformer is the transmission and conversion of torque from the motor to the transmission. It is located in a separate building, where in a special transmission fluid, the mechanisms of pumping, reactor and turbine wheels, locking clutch and the coupling of the free stroke are coordinated. The hydrotransformer operates according to the closed circle scheme.

The planetary gearbox is a fairly compact device, which is intended to prevent jerks when switching gear.

Electronics automatic transmission

All automatic transmission are managed using an electronic system consisting of such parts:

1. Selector levers.
   
2. Input sensors.
   
3. Electronic control unit.
4. Distribution module.

The input sensors read information about the oil temperature, the position of the gas pedal and the selector lever, as well as the frequency of rotation at the input / outlet of the gearbox. These important data are processed by an electronic control system. The engine control system is interconnected with an electronic unit that controls the inclusion of reduced and increased transmission.

Hydraulic system, hydraulics tasks

The automatic automatic transmission system is a very important element responsible for the operation of friction clutches and brakes, as well as distributing oil streams (ATF). Otherwise, it is called hydroblock. It is precisely this mechanism that often fails with the subsequent repair of the "automaton".

In the checkpoint, the oil is poured, moving through special channels. ATF is given in circulation using a special pump operating from the torque converter. In modern automatic transmission, oil flow controls electronics. The oil is cooled using a heat exchanger or a separate radiator.

MACHINES ACAP

The most first symptoms of the battery breakdown are the disappearance of transmission, jerks and jerks when switching speeds, increased oil consumption. On these problems will indicate the electronic system by incorporating the emergency mode. Through the electronic control unit, the transmission protection will be included, which will allow you to calmly get to the nearest one hundred.

No less often failed factory packages. Professionals advise immediately replace them with stronger and reliable, made from composite materials. If some defect arises, you should contact professionals that will conduct comprehensive testing - checking trips, computer scanning, visual check, and then will detect all possible malfunctions.

Tips of professionals, to pay attention when buying, repairing, operating a car with automatic transmission

When buying used vehicles with automatic transmission, you should pay attention to its mileage. Under the optimal operating conditions, "AUTOMAT" fails at about after one hundred thousand mileage kilometers. When the mileage of the vehicle is more than one hundred thousand, then the gearbox has become repaired. To find out just, well reviewing the gearbox and the connection point of the box with a motor. In fact, all experts believe that the automatic transmission is better replaced than to repair. In addition, the repair costs a lot of money, and such a gearbox will not last long.

In addition, the masters do not recommend exposing the automatic transmission to overheating, since it first leads to the outlet of the glands and gaskets, then oil leak occurs, after which metal elements are deformed. Ultimately, all this leads to a malfunction of the PPC itself.

Together with this, remember that driving on a car with automatic transmission should be started when the oil in the gearbox is warmed. It is necessary to start the motor, click on the brake and take each position of the scenes in each mode. No less important transmission overheating time. When you are standing in a traffic jam, switch the gearbox to the neutral position and do not hold the brake pedal more than one minute.

There is another reason, due to which the automatic transmission can fail pretty quickly - towing of faulty transport. In such a situation, the tow truck will be cheaper than to repair the "automatic". You can make a car with the "Tolkach" in the extreme case, however, it is better to avoid such techniques.

Pros and Cons

The automatic transmission is one of the most complex aggregates of the modern vehicle. Like all other devices, he has its advantages and disadvantages. To the merits can be attributed:

1. Comfort received by the driver from the trip.
2. "AUTOMA" significantly prolongs the life of the motor.
   

The disadvantages of automatic transmission include:

1. Low dynamic indicators, but not all cars.
2. A relatively low efficiency of the efficiency than that of the MCPP.

Automatic transmission, automatic box maintenance, why you need to monitor the oil level

The main feature of the maintenance of automatic transmission is the timely and regular check of the oil level in the checkpoint, its replacement and replacement of the oil filter. If the operating conditions are optimal, the oil replacement and the filter should be made after fifty thousand kilometers of the mileage. With more complex conditions of the car, this event must be carried out much more often.

At the same time, it is necessary to systematically check the oil level. It is impossible to allow its low level, since the operation of the PPC depends on its pressure. If the oil level is low, the slip arises, which leads to overheating. Symptom of low oil level - hum, which makes a torque converter. The oversized level for automatic transmission is also unacceptable. In this case, the oil loses its quality, which is able to deal with the entire mechanism. The oil level is checked using a special probe to which certain labels are applied.

Butter is poured not in a hurry. It should fill all cavities. Next, you need to make a checkpoint no more than ten kilometers, install a vehicle on a flat site and check the oil level again. After that, remove the surplus or fragrance it to the optimal level (if necessary).

It is important to know that as a result of the features of the automatic transmission, it is impossible to drain all the oil from it. Usually, about thirty percent of the waste fluid remains. That is why the total oil replacement can be achieved in two or three times.

For the "machine" you need to use ATF oil (Automatic Transmission Fluid). Try when replacing the oil to use the technical fluid of one brand or with an identical certificate. If you pour other labeling oil, the checkpoint will fail very quickly.